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cb8a67dc98
This pull request introduces a "synchronous mode" for global views. In this mode, all view updates are applied synchronously as if the view was local. Marking view as a synchronous one can be done using `CREATE MATERIALIZED VIEW` and `ALTER MATERIALIZED VIEW`. E.g.: ```cql ALTER MATERIALIZED VIEW ks.v WITH synchronous_updates = true; ``` Marking view as a synchronous one was done using tags (originally used by alternator). No big modifications in the view's code were needed. Fixes: https://github.com/scylladb/scylla/issues/10545 Closes #11013 * github.com:scylladb/scylla: cql-pytest: extend synchronous mv test with new cases cql-pytest: allow extra parameters in new_materialized_view docs: add a paragraph on view synchronous updates test/boost/cql_query_test: add test setting synchronous updates property test: cql-pytest: add a test for synchronous mode materialized views db: view: react to synchronous updates tag cql3: statements: cf_prop_defs: apply synchronous updates tag alternator, db: move the tag code to db/tags cql3: statements: add a synchronous_updates property